TUI will look in two separate "TUIAdditions" directories for user scripts and extra TUI window code. ... Scripts should be put in a directory named Scripts in the TUIAdditions directory; they will then show up immediately in the Scripts menu (you do not have to restart TUI).. ... In general, additions present in the user TUIAdditions directory mask identically named additions in the shared TUIAdditions directory, and both mask identically named built-in scripts and windows. ...